Disc brake shim



FIG. 1 is an elevated perspective of a disc brake insulator showing our new design;

FIG. 2 is a left side elevational view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is rear elevational view thereof; and,

FIG. 7 is a bottom plan view thereof. 

The ornamental design for a disc brake shim, as shown. 